1927945141 has 4 divisors (see below), whose sum is σ = 1934757952. Its totient is φ = 1921132332.

The previous prime is 1927945139. The next prime is 1927945157. The reversal of 1927945141 is 1415497291.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1927945141 - 2¹ = 1927945139 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1927945441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3405981 + ... + 3406546.

It is an arithmetic number, because the mean of its divisors is an integer number (483689488).

Almost surely, 2^1927945141 is an apocalyptic number.

It is an amenable number.

1927945141 is a deficient number, since it is larger than the sum of its proper divisors (6812811).

1927945141 is an equidigital number, since it uses as much as digits as its factorization.

1927945141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6812810.

The product of its digits is 90720, while the sum is 43.

The square root of 1927945141 is about 43908.3721060119. The cubic root of 1927945141 is about 1244.6050458204.

The spelling of 1927945141 in words is "one billion, nine hundred twenty-seven million, nine hundred forty-five thousand, one hundred forty-one".